Petzl Tikka Core

Simple and compact, the Tikka Core is great for all-round use. It's got one button for ease of use, and has white and red modes (including strobe). The Tikka Core is a HYBRID Concept headlamp, it comes with the CORE rechargeable lithium battery but can also be used with three AAA/LR03 batteries (not included). You can mount the Tikka Core to your bike or helmet with separately sold accessories, or turn it into a lantern with the Noctilight (also sold separately).

Ouput: 450 lumens 
Weight:  84 g
Modes:  white (3 power levels), red (continuous and strobe)
Battery:  CORE rechargeable (included) or three AAA (not included)
Burn time:  110 hrs (lowest power), 7 hrs (standard power), 2 hrs (max power)
Weather protection:  IPX4